Does the Brooks Ghost 15 Run Big or Small?
The Brooks Ghost 15 (Running) runs true to size with a wide toe box. See the US/UK/EU/CM conversion chart and what size to order.
How the Ghost 15 fits
The Brooks Ghost 15 (Running) runs true to size. Compared with a true-to-size sneaker, order your usual size. It has a wide toe box and high arch support, with a mesh upper that shapes how the fit settles over time.
Ghost 15 fit specs
| Category | Running |
| Length Fit | True to Size |
| Toe Box Profile | Wide |
| Arch Support | High |
| Upper Material | Mesh |
Size conversion chart
US, UK, EU and centimetre equivalents. Use it alongside the fit note above to land the right size in the Ghost 15.
| US | UK | EU | CM |
|---|---|---|---|
| 4 | 3 | 36 | 22 |
| 4.5 | 3.5 | 36.5 | 22.5 |
| 5 | 4 | 37 | 23 |
| 5.5 | 4.5 | 37.5 | 23.5 |
| 6 | 5 | 38 | 24 |
| 6.5 | 5.5 | 38.5 | 24.5 |
| 7 | 6 | 39 | 25 |
| 7.5 | 6.5 | 40 | 25.5 |
| 8 | 7 | 41 | 26 |
| 8.5 | 7.5 | 41.5 | 26.5 |
| 9 | 8 | 42 | 27 |
| 9.5 | 8.5 | 42.5 | 27.5 |
| 10 | 9 | 43 | 28 |
| 10.5 | 9.5 | 44 | 28.5 |
| 11 | 10 | 44.5 | 29 |
| 11.5 | 10.5 | 45 | 29.5 |
| 12 | 11 | 46 | 30 |
| 12.5 | 11.5 | 46.5 | 30.5 |
| 13 | 12 | 47 | 31 |
| 13.5 | 12.5 | 47.5 | 31.5 |
| 14 | 13 | 48 | 32 |
| 14.5 | 13.5 | 48.5 | 32.5 |
| 15 | 14 | 49 | 33 |
Frequently asked questions
Does the Brooks Ghost 15 run big or small?
The Brooks Ghost 15 runs true to size. Compared with a true-to-size sneaker, order your usual size.
What size should I get in the Brooks Ghost 15?
If you normally wear a US 10, target a US 10 in the Ghost 15. A US 9 foot maps to about US 9 and a US 11 to about US 11, because the model runs true to size.
Is the Brooks Ghost 15 wide or narrow?
It has a wide toe box with extra room across the forefoot. Upper material is mesh, which affects how much it gives over time.
What kind of arch support does the Brooks Ghost 15 have?
Arch support is rated high on the Ghost 15 (Running). Expect a structured, cushioned ride.
Compare the Ghost 15 to another shoe
Select both shoes to see your sizing verdict
| Spec | Brooks Ghost 15 | Shoe B |
|---|---|---|
| Length Fit | True to Size | — |
| Toe Box Profile | Wide | — |
| Arch Support | High | — |
| Upper Material | Mesh | — |